This, I would argue, is one of the scariest charts in the world today. The green line is output per hour worked, and the dotted green line is the pre-crisis trend: It’s what the Bank of England calls the “UK productivity puzzle.” As the BBC’s Linda Yueh notes: “output per hour is around 16 percentage points lower than it should be if productivity had grown at its pre-crisis pace.” I don’t think it should be called a “productivity puzzle”. That would imply that we don’t really understand the...
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